Tech review: A look back at the week's headlines

22 August 2014 Last updated at 10:19 BST

BBC Click rounds up some of the week's top technology stories including Twitter's announcement it will - in certain circumstances - remove the images of deceased people at the request of family members.

The White House said it wanted all future cars and light trucks to be equipped with technology to send each other signals to help prevent collisions.

And hitch-hiking robot HitchBOT has completed its 6,000km (3,700-mile) trip across Canada.